Fight from the center stage of the concert arena, learn the various weapon cache locations and entrances on the stage, and starting the rock concert by checking the microphone at the front of the stage. Although there’s no helicopter to save you, check the Dark Carnival chapter for more ways to slay your foes as you turn it up to eleven.
Begin by learning the entrances that the Infected are likely to funnel through (to the left (1) and right (2), sometimes along the left and right sides, and also from the front (3).
After dropping an explosive object to waylay these foes, start the match and stay on the stage during all but the most horrific battles (flee the area if a Tank (4) is becoming too much to handle).
As the stage is wide enough for strafing and remaining apart, but close enough so that you can easily rescue or provide supporting fire, it is the place to be. The stands and small scaffold platforms are an option, but your main cache is on the stage. Don’t forget to use projectiles to halt foes before they reach the stage itself.